Binder for coal briquettes and the like



Patented Aug. 17, 1926.

UNITED STATES 1,596,624 PATENT OFFICE.

WLADISLAUS RAKOWSKI, OF PHILADELPHIA, PENNSYLVANIA.

BINDER FOR COAL BRIQUETTES AND THE LIKE.

No Drawing. Application filed June 2,

My invention relates to new and useful improvements in a binder for coal briquettes and the like, and has for its primary object to use a siccative oil for holding together fragments of different sizes of coalwaste or refuse, coke-braize or other substances hav ing either combustible or non-combustible properties.

Another object of the invention is to use in conjunction with the siccative oil as a binder, in some cases, a suitable adhesive to primarily hold the particles together so that the object produced may be handled prior to the drying process.

Another object of the invention consists of a process or method for manufacturing articles with the use of the binder above mentioned which comprises the mixing of the binder with fragments or particles of coal, coke-braize, sand or the like, then subjecting the mass to pressure in a mold and then heated while in the mold to dry the same and produce an exceedingly hard prod uct which, in the case of a fuel, may afterwards be broken so as to correspond with the ordinary or standard sizes of coal.

A further object of the invention is to provide an additional step in the process above mentioned in some particular cases which consists in adding or mixing with the mass a suitable adhesive to act as a temporary binder prior to the heating or hardening action.

In order to make coal briquettes like those on the market at the present, I add, if coarse material is used, to the siccative oil moistened mass, a suitable adhesive, since briquettes of coarse material, held together by a siccative oil only, are weak and are likely to fall apart when being moved from the press to the drying room, but the use of the adhesive overcomes this difficulty and, when dried thoroughly in a hot room, the siccative will effect such hard product, that it will not fall apart during handling and will not disintegrate when burned as a fuel, until the combustible particles have been consumed. If the prepared mass consists of very fine fragments and is subjected to considerable pressure, the addition of an adhesive substance is not needed.

In carrying out my invention, 1 take one hundred pounds of coal culm, coke-braize or other fuel refuse or waste and moisten the same with two quarts of unaltered sic- 1923. Serial No. 643,071.

cative oil, examples of which are cotton seed and linseed oils, next a quantity of this mass is placed in a mold of any desirable size or shape where the contents are subjected to pressure and while the mass is in the mold heat is applied for drying it and the result ant product will be very hard and when made in large pieces the same may afterwards be broken into fragments in sizes corresponding to the ordinary or standard anthracite coal sizes and generally known as egg, stove, nut, pea, etc.

A product produced as above set forth in addition to being very hard, is Water proof, will not disintegrate orcrumble while being burned, until the pro-ducts of combustion have been consumed, and will not soil the hands.

Of course I do not wish to be limited to the exact details of construction as herein shown as these may be varied within the liniits of the appended claims without depart- 'ing from the spirit of my invention.

ilaving thus fully described my invention, what I claim as new and useful is 1. The process of producing briquettes which comprises adding to body material, in a divided state, a suflicient quantity of an unaltered siccative oil to moisten the same, compressing the mass, and heating 'the same to dryne'ss while under pressure.

2. The process of producing briquettes which comprises adding to body material, in a divided state, a sufficient quantity of unaltered linseed oil to moisten the" same, compressing the mass, and heating the same to dryness while under pressure.

3. The process of producing briquettes which comprises adding to coal or coke refuse or similar combustible material, in a divided state, a suflicient quantity of an an altered .siccative oil to moisten the same, compressing the mess, and heating the same to dryness while under pressure.

4. The process of producing briquettes which comprises adding to coal or coke refuse, or similar combustible material, in a divided state, an adhesive, and a sufficient quantity of an unaltered siecative oil to moisten the same, compressing the mass, and heating the same to dryness while under pressure.

In testimony whereof, I have hereunto aflixed my signature.

VVLADISLAUS RAKOWSKI. 

